Originally Posted by ncpl
MQA vs MQA. ?
Good question/reply but as OP has M6 (no display) he will not see the subtle . difference.
This was my understanding of M explanation when entering the SE world. So much for the consideration of the colour blind.

AV: Thorens TD160B, SME, ShureV15MK2, 500, 598, 861v4, DSP7200.1, DSP3300HC Samsung UE55, SkyHD.
DINING: MS600, AC200, DSP5200SEUG.
STUDY 504, Roon Nucleus + RevB, 808v6, 5200SE, Mac & PC (Touch Screen), Prime+PS Grado GS1000i
HORIZONTAL: M80, MS200, Red Rose Spirit + Sonus Faber Toys, iPad Mini
A capella to Zydeco